package com.cn.conf;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import com.cn.busi.exception.ErrorResult;

@Configuration
public class WebMvcConfigurer extends WebMvcConfigurerAdapter {
	private Logger logger = LoggerFactory.getLogger(WebMvcConfigurer.class);

  public void addInterceptors(InterceptorRegistry registry) {
      registry.addInterceptor(new HandlerInterceptorAdapter() {

    	  
    	    @Override
    	    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
    	            throws Exception {
    	    	
    	    	//logger.info(">>>MyInterceptor2>>>>>>>在请求处理之前进行调用（Controller方法调用之前）");

    	        return true;// 只有返回true才会继续向下执行，返回false取消当前请求
    	    }

    	    @Override
    	    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
    	            ModelAndView modelAndView) throws Exception {
    	    	//logger.info(">>>MyInterceptor2>>>>>>>请求处理之后进行调用，但是在视图被渲染之前（Controller方法调用之后）");
    	    	
    	    	//logger.info("服务器相应状态码："+response.getStatus());
    	    	//logger.info("客户端请求的方式："+request.getMethod());
    	    	//logger.info("客户端请求的方式："+);
    	    	//response.getWriter().write(new ErrorResult(200,"","").toString());
    	    	
    	    }

    	    @Override
    	    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
    	            throws Exception {
    	    	
    	    	//logger.info(">>>MyInterceptor2>>>>>>>在整个请求结束之后被调用，也就是在DispatcherServlet 渲染了对应的视图之后执行（主要是用于进行资源清理工作）");
    	    }
          
          
          
      }).addPathPatterns("/**");
  }
}
